| Value | Category | Cases | |
|---|---|---|---|
| 0 | 621 |
88.8%
|
|
| 1 | 60 |
8.6%
|
|
| 2 | 15 |
2.1%
|
|
| 3 | 3 |
0.4%
|
|
| Sysmiss | 871 |